Gahnite and Pezzottaite Physical Properties
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
4.00-4.62
2.90-3.14
Fracture
Conchoidal, Uneven
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle
Cleavage
Indistinct parting on [111]
Imperfect; basal
Mohs Hardness
7.5-8
7.5-8
Chemical Composition
ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
(Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Gahnite and Pezzottaite Chemical Formula
While comparing Gahnite and Pezzottaite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Gahnite and Pezzottaite chemical formula.
- Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Pezzottaite- (Be,Cs) 3Al 2Si 6O 18 · 0.5H 2OUlrich Henn and Claudio C.
Gahnite and Pezzottaite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Gahnite and Pezzottaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnite and Pezzottaite Optical Properties during the identification of gemstone. Specific gravity of Gahnite is 2.90-3.14 whereas that of Pezzottaite is 2.90-3.14.